How to find the surface area of a 3D pyramid

The video tutorial explains the concept of surface area using a pyramid as an example. The teacher introduces the idea of surface area by comparing it to painting or submerging an object in water. A net is created to represent the pyramid in two dimensions, and the surface area is calculated by finding the area of each face and summing them up. The tutorial concludes with a discussion on the importance of using squared units when dealing with area.

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